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Two-section type tobacco stem microwave expansion processing method

A technology of microwave expansion and treatment method, which is applied in the field of tobacco processing, can solve the problems affecting the filament rate, yield and quality of cut stems, and achieve the goal of improving the filament rate and yield, good uniformity, and uniform moisture and temperature Effect

Active Publication Date: 2014-10-08
CHINA TOBACCO YUNNAN IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In order to solve the problems existing in the production of microwave-expanded cut stems that affect the filament rate, yield and quality of cut stems, the present invention provides a two-stage microwave expansion treatment method for tobacco stems

Method used

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  • Two-section type tobacco stem microwave expansion processing method
  • Two-section type tobacco stem microwave expansion processing method
  • Two-section type tobacco stem microwave expansion processing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] (1) Tobacco stem screening: Screen the upper stem to be expanded through a 5mm×25mm waist-shaped vibrating screen to improve the uniformity of tobacco stem expansion;

[0030] (2) First temperature increase and humidification: use 190°C steam to carry out the first temperature increase and humidification treatment on the tobacco stem sieve obtained in step (1), so that the surface temperature of the tobacco stem is 65.9°C, and the tobacco stem Stem moisture is 13.35wt%;

[0031] (3) The first microwave expansion: transport the tobacco stem obtained in step (2) to a drum-type microwave expansion equipment under the conditions of a microwave power of 25.5KW, an inclination angle of the microwave expansion equipment of 7°, and a rotation speed of 5.0r / min Under expand, make the average expansion rate of tobacco stem 89%, tobacco stem moisture is 8.75wt%;

[0032] (4) Air cooling: the tobacco stems obtained in step (3) are forced to air-cool for 75 seconds, so that the sur...

Embodiment 2

[0038] (1) Tobacco stem screening: Screen the middle stem to be expanded through a 5mm×25mm waist-shaped hole screen to improve the uniformity of tobacco stem expansion;

[0039] (2) The first temperature increase and humidification: use 185°C steam to carry out the first temperature increase and humidification treatment on the tobacco stem sieved obtained in step (1), so that the surface temperature of the tobacco stem is 80°C, and the tobacco stem surface temperature is 80°C. Stem moisture is 12wt%;

[0040] (3) The first microwave expansion: transport the tobacco stem obtained in step (2) to a drum-type microwave expansion equipment, under the conditions of a microwave power of 26KW, an inclination angle of the microwave expansion equipment of 7°, and a rotation speed of 5.2r / min Carry out expansion, make the average expansion rate of tobacco stem 100%, tobacco stem moisture is 9.28wt%;

[0041] (4) Air cooling: the tobacco stems obtained in step (3) are subjected to force...

Embodiment 3

[0047] (1) Tobacco stem screening: Screen the lower stem to be expanded through a 5mm×25mm waist-shaped hole screen to improve the uniformity of tobacco stem expansion;

[0048] (2) The first temperature increase and humidification: use 180°C steam to carry out the first temperature increase and humidification treatment on the tobacco stem sieve obtained in step (1), so that the surface temperature of the tobacco stem is 60°C, and the tobacco stem surface temperature is 60°C. Stem moisture is 14wt%;

[0049] (3) The first microwave expansion: transport the tobacco stems obtained in step (2) to a drum-type microwave expansion equipment under the conditions of a microwave power of 24KW, an inclination angle of the microwave expansion equipment of 7°, and a rotation speed of 5.5r / min Carry out expansion, make the average expansion rate of tobacco stem 80%, tobacco stem moisture is 8wt%;

[0050] (4) Air-cooling: the tobacco stems obtained in step (3) are subjected to forced air-...

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Abstract

The invention relates to a two-section type tobacco stem microwave expansion processing method and belongs to the technical field of tobacco processing. According to the method, two times of heating and humidification and two times of microwave expansion processing are performed on tobacco stems. The method includes the steps of tobacco stem screening, the first time of heating and humidification, the first time of microwave expansion, air cooling, the second time of heating and humidification, the second time of microwave expansion, microwave expansion tobacco stem screening and air separation. The two-section type tobacco stem microwave expansion processing method has the advantages that the average expansion rate of the tobacco stems can reach more than 200%, the power of the two times of microwave expansion is no higher than 50 KW, loss of natural tobacco fragrance is reduced, carbonization and fire striking of the microwave expansion tobacco stems are reduced, the uniformity of the microwave expansion tobacco stems is improved, the scorching smell of microwave expansion stem filaments is reduced, and the quality of the microwave expansion stem filaments is improved; the water content of the expanded tobacco stems is no lower than 6wt%, crush of the tobacco stems is reduced, and the filament rate and the yield of the microwave expansion stem filaments are increased.

Description

technical field [0001] The invention relates to a two-stage microwave expansion treatment method for tobacco stems, which belongs to the technical field of tobacco processing. Background technique [0002] Tobacco stems account for 25% to 30% of the weight of tobacco leaves. Since tobacco stems and tobacco leaves have similar components and have the functions of improving cigarette structure, reducing costs, and reducing harm and tar, they are an important part of cigarette raw materials. With the continuous improvement of microwave expansion of tobacco stems and its filament forming technology, microwave expanded shredded stems have been widely used in cigarette production. [0003] Chinese patent application CN102178341A discloses a "cut tobacco stem processing method", which is to expand the tobacco stem first, then cut the expanded tobacco stem into slices, and then cut into cut stems. The tobacco stem expansion is processed by the existing microwave expansion equipment...

Claims

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Application Information

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IPC IPC(8): A24B5/16
Inventor 董高峰和智君殷沛沛卢伟王保兴余贺龙宋鹏飞刘鹏梅健
Owner CHINA TOBACCO YUNNAN IND
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